1. Module 1 Intro

1.20. Page 2

Module 1: Lesson 4

Module 1—Chemical Foundations

Explore

 

Molecules are formed when two or more non-metallic elements share electrons.

 

A representation of the periodic table is shown as an empty grid with 18 columns. Two regions are shown divided by a zigzag line that starts two-thirds of the way across the table and extends downwards. To the left of the line is the label metals, while to the right of the line is the label non-metals.

 

Self-Check


SC 1. Can you identify the location of the non-metallic elements on the periodic table representation? You may wish to print a copy of this figure and shade in their locations. You can check your answer by referring to page 14 of your textbook.

 

SC 2. Molecules can be classified into two categories: molecular elements and molecular compounds. Can you identify the location of the molecular elements on the periodic table representation?

 

Check your work.

 

Self-Check Answer

 

SC 1. Use the following chart to answer your question. The non-metals are placed on the right side of the table.

 

This is a representation of the periodic table. Two regions are shown divided by a zigzag line that starts two-thirds of the way across the table and extends downwards. To the left of the line is the label metals, while to the right of the line is the label non-metals.

 

SC 2. The following chart shows the location of the molecular elements.

 

A representation of the periodic table is shown. Two regions are shown divided by a zigzag line that starts two-thirds of the way across the table and extends downwards. To the left of the line is the label metals, while to the right of the line is the label non-metals. The following locations are shaded to indicate molecular elements. Column 1, row . Column 15, rows 2 and 3. Column 16, rows 2 and 3. Column 17, rows 2, 3, 4, 5, and 6.

Naming Molecular Elements

 

Read

 

Read page 33 of the textbook and page 34 to the end of “Summary” to review the recognition and naming of molecular elements and the procedure for naming molecular compounds. Attempt Self-Check questions 3 and 4. If you wish to complete a further review, open the Additional Review of Molecular Compounds.

 

Self-Check

 

SC 3. State the name of the following substances.

  1. CO

  2. P4O10

  3. I2

SC 4. State the chemical formula for the following substances.

  1. dinitrogen tetraoxide

  2. carbon disulfide

  3. fluorine
Check your work.
Self-Check Answer

 

SC 3.

  1. carbon monoxide

  2. tetraphosphorus decaoxide

  3. iodine

SC 4.

  1. N2O4

  2. CS2

  3. F2